/*!
* \brief check if the current parameter can found a presenting sps
* \param pParam the current encoding paramter in SWelsSvcCodingParam
* \param kbUseSubsetSps bool
* \param iDlayerIndex int, the index of current D layer
* \param iDlayerCount int, the number of total D layer
* \param pSpsArray array of all the stored SPSs
* \param pSubsetArray array of all the stored Subset-SPSs
* \return 0 - successful
* -1 - cannot find existing SPS for current encoder parameter
*/
int32_t FindExistingSps (SWelsSvcCodingParam* pParam, const bool kbUseSubsetSps, const int32_t iDlayerIndex,
const int32_t iDlayerCount, const int32_t iSpsNumInUse,
SWelsSPS* pSpsArray,
SSubsetSps* pSubsetArray, bool bSVCBaseLayer) {
SSpatialLayerConfig* pDlayerParam = &pParam->sSpatialLayers[iDlayerIndex];
assert (iSpsNumInUse <= MAX_SPS_COUNT);
if (!kbUseSubsetSps) {
SWelsSPS sTmpSps;
WelsInitSps (&sTmpSps, pDlayerParam, &pParam->sDependencyLayers[iDlayerIndex], pParam->uiIntraPeriod,
pParam->iMaxNumRefFrame,
0, pParam->bEnableFrameCroppingFlag, pParam->iRCMode != RC_OFF_MODE, iDlayerCount,
bSVCBaseLayer);
for (int32_t iId = 0; iId < iSpsNumInUse; iId++) {
if (CheckMatchedSps (&sTmpSps, &pSpsArray[iId])) {
return iId;
}
}
} else {
SSubsetSps sTmpSubsetSps;
WelsInitSubsetSps (&sTmpSubsetSps, pDlayerParam, &pParam->sDependencyLayers[iDlayerIndex], pParam->uiIntraPeriod,
pParam->iMaxNumRefFrame,
0, pParam->bEnableFrameCroppingFlag, pParam->iRCMode != RC_OFF_MODE, iDlayerCount);
for (int32_t iId = 0; iId < iSpsNumInUse; iId++) {
if (CheckMatchedSubsetSps (&sTmpSubsetSps, &pSubsetArray[iId])) {
return iId;
}
}
}
return INVALID_ID;
}
static int32_t WelsGenerateNewSps (sWelsEncCtx* pCtx, const bool kbUseSubsetSps, const int32_t iDlayerIndex,
const int32_t iDlayerCount, const int32_t kiSpsId,
SWelsSPS*& pSps, SSubsetSps*& pSubsetSps, bool bSVCBaselayer) {
int32_t iRet = 0;
if (!kbUseSubsetSps) {
pSps = & (pCtx->pSpsArray[kiSpsId]);
} else {
pSubsetSps = & (pCtx->pSubsetArray[kiSpsId]);
pSps = &pSubsetSps->pSps;
}
SWelsSvcCodingParam* pParam = pCtx->pSvcParam;
SSpatialLayerConfig* pDlayerParam = &pParam->sSpatialLayers[iDlayerIndex];
// Need port pSps/pPps initialization due to spatial scalability changed
if (!kbUseSubsetSps) {
iRet = WelsInitSps (pSps, pDlayerParam, &pParam->sDependencyLayers[iDlayerIndex], pParam->uiIntraPeriod,
pParam->iMaxNumRefFrame,
kiSpsId, pParam->bEnableFrameCroppingFlag, pParam->iRCMode != RC_OFF_MODE, iDlayerCount,
bSVCBaselayer);
} else {
iRet = WelsInitSubsetSps (pSubsetSps, pDlayerParam, &pParam->sDependencyLayers[iDlayerIndex], pParam->uiIntraPeriod,
pParam->iMaxNumRefFrame,
kiSpsId, pParam->bEnableFrameCroppingFlag, pParam->iRCMode != RC_OFF_MODE, iDlayerCount);
}
return iRet;
}
int32_t WelsInitSubsetSps (SSubsetSps* pSubsetSps, SDLayerParam* pLayerParam, const uint32_t kuiIntraPeriod,
const int32_t kiNumRefFrame,
const uint32_t kuiSpsId, const bool kbEnableFrameCropping, bool bEnableRc) {
SWelsSPS* pSps = &pSubsetSps->pSps;
memset (pSubsetSps, 0, sizeof (SSubsetSps));
WelsInitSps (pSps, pLayerParam, kuiIntraPeriod, kiNumRefFrame, kuiSpsId, kbEnableFrameCropping, bEnableRc);
pSps->uiProfileIdc = (pLayerParam->uiProfileIdc >= PRO_SCALABLE_BASELINE) ? pLayerParam->uiProfileIdc :
PRO_SCALABLE_BASELINE;
pSubsetSps->sSpsSvcExt.iExtendedSpatialScalability = 0; /* ESS is 0 in default */
pSubsetSps->sSpsSvcExt.bAdaptiveTcoeffLevelPredFlag = false;
pSubsetSps->sSpsSvcExt.bSeqTcoeffLevelPredFlag = false;
pSubsetSps->sSpsSvcExt.bSliceHeaderRestrictionFlag = true;
return 0;
}
